fmv\avi calls with acs\jdoom?

Okay, this may be a little stupid, but I am just curious.

Is it possible with jdoom or acs to call up an external file and play it? like an avi or fmv... okay now I realize that you would need some software to play it back... but maybe this can be implemented somehow?

thoughts?

http://www.zdoom.org/wiki/index.php?title=PlayMovie